Green warned his players about staying on an even keel heading into a four-game series in Atlanta.

"I don't want to make too much out of the streak," Green said. "Over the course of a season, every team has some hot streaks and cold streaks. You can't get caught up in those moments. It doesn't serve the purpose."

The Padres took two of three in a stadium where they had struggled. St. Louis had won 30 of its previous 42 home games against San Diego.

Lauer (3-4) gave up two runs and eight hits over 5 2/3 innings. He's 3-0 when getting two or more runs of support.

"I felt a lot more comfortable out on the mound as far as not pressing," Lauer said. "I think I did a good job. I was out there just throwing my game."

Lauer gave up six runs to St. Louis on seven hits during a 9-5 loss on May 11. The Cardinals hit four homers off him in a short 2 1/3 inning stint.

"I pretty much had the same game plan, I wanted to attack hitters," Lauer said.

San Diego reliever Jose Castillo struck out all four batters he faced. The Padres pitching staff did not walk a batter in the three-game series.

St. Louis starter Luke Weaver (3-6) gave up four runs and nine hits over 5 1/3 innings. He has just one win over his last 11 starts.

"I didn't think it was a terrible start," Weaver said. "They just capitalized on the moments they needed to. I've just got to go back to the drawing board."

Margot, who singled in the second and fourth, stretched the lead to 3-0 with a run-scoring triple in the sixth. Raffy Lopez followed with a broken-bat single off reliever Austin Gomber for a 4-0 lead.

Margot has hit safely in his last six games, going 9 for 20. He had two hits in a 4-2 win Tuesday.

Ozuna, who leads the team with 21 multihit games, has hit safely in 11 of his last 12.

St. Louis came into the series having won three of four.

"Sometimes we do our best with a real good team and sometimes - well I don't know," Ozuna said. "It's baseball and in baseball anything happens."

SHARP DEFENSE

The Cardinals have not allowed an error in their last six games. It is their longest errorless stretch since Aug. 3-8 last season.

TRAINER'S ROOM

Padres: C Austin Hedges began a rehab assignment with Class A Lake Elsinore on Tuesday. He went 1 for 2. Hedges was placed on the DL on May 1 with right elbow tendonitis. He has missed 38 games.

Cardinals: INF Jose Martinez will be out on paternity leave for the upcoming weekend series against the Chicago Cubs.

UP NEXT:

Padres: RHP Tyson Ross (5-3, 3.43) will open a four-game series at Atlanta against RHP Anibal Sanchez (2-0, 2.37) on Thursday. The Padres are in 10-3 when Tyson starts and have won the last six.

Cardinals: RHP Michael Wacha (8-1, 2.47) face LHP Jon Lester (7-2, 2.22) in the first of a three-game home series against the Chicago Cubs on Friday. Wacha has won his last eight decisions against the Cubs.